Type: QSFP+ Direct Attach Copper (DAC) cable
Speed: 40GbE (40GBASE-CR4)
Connector: QSFP+ to QSFP+
Length: 0.5 meter (50 cm)
Cable type: Passive twinax copper
Use case: Switch ↔ switch / rack-level high-speed links
Form factor: QSFP+ high-speed interconnect